Final answer:
Arteries carry blood away from the heart, veins carry blood toward the heart, and capillaries facilitate the exchange of substances between the blood and tissues. The option (A) is correct.
Step-by-step explanation:
Arteries are blood vessels that carry blood away from the heart. They have thick walls that can withstand the pressure of blood being pumped by the heart. Arteries generally carry oxygen-rich blood. The largest artery is the aorta, which receives blood directly from the heart.
Veins are blood vessels that carry blood toward the heart. This blood is no longer under much pressure, so many veins have valves that prevent the backflow of blood. Veins generally carry deoxygenated blood. The largest vein is the inferior vena cava. Capillaries are the smallest blood vessels in the body. They connect arteries and veins and are responsible for the exchange of oxygen, nutrients, and waste products between the blood and the surrounding tissues. Therefore, option (A) is correct.
This question is not complete, Here I am attaching the complete question:
Vessels conveying blood away from the heart_____________.
A) Arteries
B) Veins
C) Capillaries
D) Aorta